In a video released by studioADI, a special effects company, featuring a bunch of concept designs of "It", we can see a computer in the background with this on the monitor.
The fact that someone in the background had to hide it is pretty telling.
When people in the comments section started pointing it out, the owner of the channel responded that it was a design for a movie called "Lucifer" that was cancelled ten years ago.
They then proceeded to delete the video. Because that's what you do to correct people that an unfinished, three-headed, two-tailed dragon model is from a cancelled movie from ten years ago that you had on your computer and needed to be hidden.
Just a bit of wild speculation on my part, but promotional material released alongside Kong: Skull Island indirectly mentions Ghidorah, saying "the devil has three heads."
The devil
Lucifer.
gg, guys.
Thoughts on the design?